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Zarif ME, Bita B, Yehia-Alexe SA, Negut I, Gradisteanu Pircalabioru G, Andronescu E, Groza A. Biological and Physicochemical Analysis of Sr-Doped Hydroxyapatite/Chitosan Composite Layers. Polymers (Basel) 2024; 16:1922. [PMID: 39000777 PMCID: PMC11244040 DOI: 10.3390/polym16131922] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2024] [Revised: 06/06/2024] [Accepted: 07/02/2024] [Indexed: 07/17/2024] Open
Abstract
In this work results are presented on the evaluation of HAp, HApSr, HAp_CS, and HApSr_CS layers deposited on Ti substrates regarding L929 cell viability and cytotoxicity as well as antimicrobial activity against Staphylococcus aureus, in connection with their physicochemical properties. The HAp and HApSr layers generated by radio-frequency magnetron sputtering technique were further covered with chitosan by a matrix-assisted pulsed laser evaporation technique. During the plasma depositions, the Ti substrates were heated externally by a home-made oven above 100 °C. The HApSr_CS layers generated on the unpolished Ti substrates at 100 °C and 400 °C showed the highest biocompatibility properties and antimicrobial activity against Staphylococcus aureus. The morphology of the layer surfaces, revealed by scanning electron microscopy, is dependent on substrate temperature and substrate surface roughness. The optically polished surfaces of Ti substrates revealed grain-like and microchannel structure morphologies of the layers deposited at 25 °C substrate temperature and 400 °C, respectively. Chitosan has no major influence on HAp and HApSr layer surface morphologies. X-ray photoelectron spectroscopy indicated the presence of Ca 2p3/2 peak characteristic of the HAp structure even in the case of the HApSr_CS samples generated at a 400 °C substrate temperature. Fourier transform infrared spectroscopy investigations showed shifts in the wavenumber positions of the P-O absorption bands as a function of Sr or chitosan presence in the HAp layers generated at 25, 100, and 400 °C substrate temperatures.
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Affiliation(s)
- Maria Elena Zarif
- National Institute for Lasers, Plasma and Radiation Physics, 077125 Măgurele, Romania; (M.E.Z.); (B.B.); (S.A.Y.-A.); (I.N.)
- Faculty of Chemical Engineering and Biotechnologies, University Politehnica of Bucharest, 011061 Bucharest, Romania;
| | - Bogdan Bita
- National Institute for Lasers, Plasma and Radiation Physics, 077125 Măgurele, Romania; (M.E.Z.); (B.B.); (S.A.Y.-A.); (I.N.)
- Faculty of Physics, University of Bucharest, 077125 Măgurele, Romania
| | - Sasa Alexandra Yehia-Alexe
- National Institute for Lasers, Plasma and Radiation Physics, 077125 Măgurele, Romania; (M.E.Z.); (B.B.); (S.A.Y.-A.); (I.N.)
- Faculty of Physics, University of Bucharest, 077125 Măgurele, Romania
| | - Irina Negut
- National Institute for Lasers, Plasma and Radiation Physics, 077125 Măgurele, Romania; (M.E.Z.); (B.B.); (S.A.Y.-A.); (I.N.)
| | - Gratiela Gradisteanu Pircalabioru
- eBio-Hub Research Center, University Politehnica of Bucharest-CAMPUS, 6 Iuliu Maniu Boulevard, 061344 Bucharest, Romania;
- Research Institute of the University of Bucharest (ICUB), University of Bucharest, 050657 Bucharest, Romania
- Department of Microbiology and Immunology, Faculty of Biology, University of Bucharest, 050657 Bucharest, Romania
| | - Ecaterina Andronescu
- Faculty of Chemical Engineering and Biotechnologies, University Politehnica of Bucharest, 011061 Bucharest, Romania;
- Academy of Romanian Scientists, 3 Ilfov Str., District 5, 050044 Bucharest, Romania
- National Research Center for Micro and Nanomaterials, University Politehnica of Bucharest, 060042 Bucharest, Romania
| | - Andreea Groza
- National Institute for Lasers, Plasma and Radiation Physics, 077125 Măgurele, Romania; (M.E.Z.); (B.B.); (S.A.Y.-A.); (I.N.)
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Zhang Y, Ye M, Liu W, Chen X, Zhou C, Yu T. In Situ Construction of Morphologically Different Hydroxyapatite-Mineralized Structures on a Three-Dimensional Bionic Chitin Scaffold. ACS APPLIED MATERIALS & INTERFACES 2024; 16:8378-8390. [PMID: 38326945 DOI: 10.1021/acsami.3c16917] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/09/2024]
Abstract
Slow healing at the tendon-bone interface is a prominent factor in the failure of tendon repair surgeries. The development of functional biomaterials with 3D gradient structures is urgently needed to improve tendon-bone integration. The crystalline form of hydroxyapatite (HAP) has a crucial impact on cell behavior, which directly influences protein adsorption, such as bone morphogenetic protein 2, the adhesion, proliferation, and osteogenic differentiation with cells. This work aimed to generate gradient mineral structures in situ by stabilizing calcium and phosphate ions using a polymer-induced liquid precursor process. To regulate the crystalline growth of HAP at the interface of β-chitin, this work made use of the surface properties of the organic matrix found in cuttlefish bone. These techniques allowed us to prepare an organic-inorganic composite gradient scaffold comprising plate-like HAP mineralized in situ on the surface of the scaffold and fibrous HAP in the scaffold's interior. Organic-inorganic composite gradient materials are anticipated for use in tendon-bone healing produced via the in situ construction of gradient-distributed HAP mineralization layers having varying crystalline morphologies on chitin scaffolds that possess a three-dimensional bionic structure.
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Affiliation(s)
- Yi Zhang
- College of Chemistry and Materials Science, Jinan University, Guangzhou 510632, China
- Engineering Research Center of Artificial Organs and Materials, Ministry of Education, Jinan University, Guangzhou 510632, China
| | - Minxuan Ye
- College of Chemistry and Materials Science, Jinan University, Guangzhou 510632, China
- Engineering Research Center of Artificial Organs and Materials, Ministry of Education, Jinan University, Guangzhou 510632, China
| | - Wenkang Liu
- College of Chemistry and Materials Science, Jinan University, Guangzhou 510632, China
- Engineering Research Center of Artificial Organs and Materials, Ministry of Education, Jinan University, Guangzhou 510632, China
| | - Xiaohui Chen
- College of Chemistry and Materials Science, Jinan University, Guangzhou 510632, China
- Engineering Research Center of Artificial Organs and Materials, Ministry of Education, Jinan University, Guangzhou 510632, China
| | - Changren Zhou
- College of Chemistry and Materials Science, Jinan University, Guangzhou 510632, China
- Engineering Research Center of Artificial Organs and Materials, Ministry of Education, Jinan University, Guangzhou 510632, China
| | - Tao Yu
- College of Chemistry and Materials Science, Jinan University, Guangzhou 510632, China
- Guangdong Provincial Key Laboratory of Spine and Spinal Cord Reconstruction, The Fifth Affiliated Hospital (Heyuan Shenhe People's Hospital), Jinan University, Heyuan 517000, China
- Engineering Research Center of Artificial Organs and Materials, Ministry of Education, Jinan University, Guangzhou 510632, China
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Luo Y, Peng X, Cheng C, Deng Y, Lei N, Feng S, Yu X. 3D Molybdenum Disulfide Nanospheres Loaded with Metformin to Enhance SCPP Scaffolds for Bone Regeneration. ACS APPLIED MATERIALS & INTERFACES 2024; 16:201-216. [PMID: 38127723 DOI: 10.1021/acsami.3c14229] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2023]
Abstract
Conventional strontium-doped calcium polyphosphate (SCPP) ceramics have attracted a lot of attention due to good cytocompatibility and controlled degradation. However, their poor mechanical strength, brittleness, and difficulty in eliminating unavoidable postoperative inflammation and bacterial infections in practical applications limit their further clinical application. In this study, carboxylated molybdenum disulfide nanospheres (MoS2-COOH) were first prepared via a one-step hydrothermal method. The optimal doping concentration of MoS2-COOH was then incorporated into SCPP to overcome its poor mechanical strength. To further enhance the anti-inflammatory properties of scaffolds, metformin (MET) was loaded onto MoS2-COOH through covalent bond cross-linking (MoS2-MET). Then MoS2-MET was doped into SCPP (SCPP/MoS2-MET) according to the previously obtained concentration, resulting in the controlled and sustained release of MET from the SCPP/MoS2-MET scaffolds for 21 days in vitro. The SCPP/MoS2-MET scaffolds were shown to have good biological activity in vitro to promote stem cell proliferation and the potential to promote mineralization in vitro. It also showed good osteoimmunomodulatory activity could reduce the expression of proinflammatory factors and effectively induce the differentiation of BMSCs under inflammatory conditions, upregulating the expression of relevant osteoblastic cytokines. In addition, SCPP/MoS2-MET scaffolds could effectively inhibit Staphylococcus aureus and Escherichia coli. In vivo experiments also demonstrated better osteogenic potential of SCPP/MoS2-MET scaffolds compared with the other scaffold-samples. Thus, the introduction of carboxylated molybdenum disulfide nanospheres is a promising approach to improve the properties of SCPP and may provide a new modification strategy for inert ceramic scaffolds and the construction of multifunctional composite scaffolds for bone tissue engineering.
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Affiliation(s)
- Yihao Luo
- College of Polymer Science and Engineering, Sichuan University, Chengdu 610065, P.R. China
| | - Xu Peng
- College of Polymer Science and Engineering, Sichuan University, Chengdu 610065, P.R. China
- Experimental and Research Animal Institute, Sichuan University, Chengdu 610065, P.R. China
| | - Chan Cheng
- College of Polymer Science and Engineering, Sichuan University, Chengdu 610065, P.R. China
| | - Yiqing Deng
- College of Polymer Science and Engineering, Sichuan University, Chengdu 610065, P.R. China
| | - Ningning Lei
- College of Polymer Science and Engineering, Sichuan University, Chengdu 610065, P.R. China
| | - Shaoxiong Feng
- College of Polymer Science and Engineering, Sichuan University, Chengdu 610065, P.R. China
| | - Xixun Yu
- College of Polymer Science and Engineering, Sichuan University, Chengdu 610065, P.R. China
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Lv C, Zhang J, Wu L, Ouyang G, Hou X. Turning hydroxyapatite from insulator to visible-light induced photocatalytic membrane through oxygen vacancy introduction and hetero-junction forming with chitosan. Carbohydr Polym 2023; 300:120235. [DOI: 10.1016/j.carbpol.2022.120235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 09/07/2022] [Accepted: 10/13/2022] [Indexed: 11/06/2022]
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Physicochemical studies of iron/vanadate doped hydroxyapatite/polycaprolactone nanofibers scaffolds. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.132835] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Ding H, Xu P, Yu X, Hu M, Wan C, Lei N, Luo Y, Yu X. The Construction of a Self-assembled Coating with Chitosan-Grafted Reduced Graphene Oxide on Porous Calcium Polyphosphate Scaffolds for Bone Tissue Engineering. Biomed Mater 2022; 17. [PMID: 35545061 DOI: 10.1088/1748-605x/ac6eab] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Accepted: 05/11/2022] [Indexed: 11/11/2022]
Abstract
Bone regeneration in large bone defects remains one of the major challenges in orthopedic surgery. Calcium polyphosphate (CPP) scaffolds possess excellent biocompatibility and exhibits good bone ingrowth. However, the present CPP scaffolds lack enough osteoinductive activity to facilitate bone regeneration at bone defects that exceed the critical size threshold. To endow CPP scaffolds with improved osteoinductive activity for better bone regeneration, in this study, a self-assembled coating with chitosan-grafted reduced graphene oxide (CS-rGO) sheets was successfully constructed onto the surface of CPP scaffolds through strong electrostatic interaction and hydrogen bonds. Our results showed that the obtained CPP/CS-rGO composite scaffolds exhibited highly improved biomineralization and considerable antibacterial activity. More importantly, CPP/CS-rGO composite scaffolds could drive osteogenic differentiation of BMSCs and significantly up-regulate the expression of osteogenesis-related proteins in vitro. Meanwhile, the CS-rGO coating could inhibit aseptic loosening and improve interfacial osseointegration through stimulating BMSCs to secrete more OPG and lesser RANKL. Overall, the CS-rGO coating adjusts CPP scaffolds' biological environment interface and endows CPP scaffolds with more bioactivity.
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Affiliation(s)
- Hongmei Ding
- Sichuan University College of Polymer Science and Engineering, Chengdu, Chengdu, Sichuan, 610065, CHINA
| | - Peng Xu
- College of Polymer Science and Engineering, Sichuan University, Chengdu, Sichuan, Chengdu, 621000, CHINA
| | - Xiaoshuang Yu
- Sichuan University College of Polymer Science and Engineering, Chengdu, Chengdu, Sichuan, 610065, CHINA
| | - Mengyue Hu
- Sichuan University College of Polymer Science and Engineering, Chengdu, Chengdu, Sichuan, 610065, CHINA
| | - Chang Wan
- Sichuan University College of Polymer Science and Engineering, Chengdu, Chengdu, Sichuan, 610065, CHINA
| | - Ningning Lei
- Sichuan University College of Polymer Science and Engineering, Chengdu, Chengdu, Sichuan, 610065, CHINA
| | - Yihao Luo
- Sichuan University College of Polymer Science and Engineering, Chengdu, Chengdu, Sichuan, 610065, CHINA
| | - Xixun Yu
- Sichuan University College of Polymer Science and Engineering, Chengdu, Chengdu, Sichuan, 610065, CHINA
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